论文部分内容阅读
图中的小功率、线性相位调制器与输入信号一起工作,而输入信号是载频的二分之一频率,或者少于二分之一频率。恒流二极管CR_1和电容器C_1在触发器IC_1的时钟输入处提供一个线性斜坡电压。当斜坡达到大致为50％的电源电压时,该触发器变换状态。同时,送到与非门IC_(2A)和IC_(2B)的载频脉冲周期地使浮电容器C_1短接,并使其耗损至0V。载频脉冲必须是短和正向的。
The low-power, linear phase modulator in the figure works with the input signal while the input signal is one-half of the carrier frequency, or less than one half of the frequency. The constant current diode CR_1 and the capacitor C_1 provide a linear ramp voltage at the clock input of the flip-flop IC_1. When the ramp reaches approximately 50% of the supply voltage, the flip-flop changes state. At the same time, the carrier frequency pulses supplied to the NAND gates IC_ (2A) and IC_ (2B) periodically short-circuit the floating capacitor C_1 and dissipate it to 0V. The carrier pulse must be short and forward.